U.S. patent application number 16/981176 was filed with the patent office on 2021-01-07 for electronic apparatus.
This patent application is currently assigned to Sony Interactive Entertainment Inc.. The applicant listed for this patent is Sony Interactive Entertainment Inc.. Invention is credited to Keiichi Aoki, Ichiro Sasaki.
Application Number | 20210007239 16/981176 |
Document ID | / |
Family ID | |
Filed Date | 2021-01-07 |
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United States Patent
Application |
20210007239 |
Kind Code |
A1 |
Sasaki; Ichiro ; et
al. |
January 7, 2021 |
ELECTRONIC APPARATUS
Abstract
Proposed is an electronic apparatus with which it is possible to
increase design freedom concerning a wall section formed with vent
holes. A rear wall section (20D) includes a rectilinear wall
section (21i) spaced rearward from a rear edge (41c) of a circuit
board (41), and an inclined wall section (21j) located on the rear
side relative to the rectilinear wall section (21i). An inner wall
section (42e) is located between the inclined wall section (21j)
and the rear edge (41c) of the circuit board (41), and is not
located between the rectilinear wall section (21i) and the rear
edge (41c) of the circuit board (41).
Inventors: |
Sasaki; Ichiro; (Chiba,
JP) ; Aoki; Keiichi; (Kanagawa, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Sony Interactive Entertainment Inc. |
Tokyo |
|
JP |
|
|
Assignee: |
Sony Interactive Entertainment
Inc.
Tokyo
JP
|
Appl. No.: |
16/981176 |
Filed: |
March 15, 2019 |
PCT Filed: |
March 15, 2019 |
PCT NO: |
PCT/JP2019/010945 |
371 Date: |
September 15, 2020 |
Current U.S.
Class: |
1/1 |
International
Class: |
H05K 7/20 20060101
H05K007/20; H05K 7/14 20060101 H05K007/14 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 22, 2018 |
JP |
2018-055134 |
Claims
1. An electronic apparatus comprising: a circuit board; and an
armor member having a vent hole wall that is located in a first
direction relative to the circuit board and that is formed with a
plurality of vent holes, wherein the circuit board has an edge
along the vent hole wall, on a side of the vent hole wall, the vent
hole wall includes a first wall section spaced in the first
direction from the edge of the circuit board, and a second wall
section located in the first direction relative to the first wall
section, and an inner wall section is located between the second
wall section and the edge of the circuit board, and the inner wall
section is not located between at least a part of the first wall
and the edge of the circuit board.
2. The electronic apparatus according to claim 1, wherein the inner
wall section is formed with a hole penetrating in the first
direction.
3. The electronic apparatus according to claim 1, wherein the
second section is formed with part of the plurality of vent holes,
and the inner wall section is formed with a hole penetrating in the
first direction.
4. The electronic apparatus according to claim 1, further
comprising: a case for accommodating the circuit board, wherein the
inner wall section is a part of the case.
5. The electronic apparatus according to claim 1, wherein the
second wall section is connected to the first wall section, and is
curved toward the first direction from the first wall section.
Description
TECHNICAL FIELD
[0001] The present disclosure relates to an electronic
apparatus.
BACKGROUND ART
[0002] An electronic apparatus of PTL 1 below has an air flow path
for cooling a microprocessor mounted on a main substrate and parts
mounted to a power source circuit. An armor member of the
electronic apparatus is formed with intake holes and exhaust holes
located at end portions of the air flow path. A plurality of the
intake holes is formed in a side wall of the armor member, and a
plurality of the exhaust holes is formed in a rear wall of the
armor member (In the following, both the intake holes and the
exhaust holes will be referred to as vent holes.). Along the wall
sections provided with the vent holes, the parts such as the
circuit board are located.
CITATION LIST
Patent Literature
[0003] [PTL 1] JP 2017-183670A
SUMMARY
Technical Problems
[0004] A designer of an electronic apparatus may desire to curve or
incline a wall section formed with vent holes (hereinafter referred
to as a vent hole wall), for the purpose of enhancing the
appearance and functionality of the electronic apparatus. However,
for example, if a part of the vent hole wall is inclined such as to
be bulged toward the outside, the distance between the circuit
board disposed inside the armor member and the inclined part of the
vent hole wall would be larger than the distance between other part
of the vent hole wall and the circuit board. This may make it
difficult to adopt a design in which the vent hole wall is
inclined. For example, since an airflow is changed when a part of
the vent hole wall is inclined, it may be difficult to adopt a
design in which a part of the vent hole wall is inclined. In
addition, in the case where a part (for example, electric wire)
attached to the circuit board is supported by the vent hole wall,
such a support structure cannot be realized at the inclined part of
the vent hole wall, so that it may be difficult to adopt a design
in which a part of the vent hole wall is inclined.
[0005] One of the objects of the present disclosure is to propose
an electronic apparatus with which it is possible to increase
design freedom concerning a wall section formed with vent
holes.
Solution to Problems
[0006] An example of an electronic apparatus proposed in the
present disclosure includes a circuit board, and an armor member
having a vent hole wall that is located in a first direction
relative to the circuit board and that is formed with a plurality
of vent holes. The circuit board has an edge along the vent hole
wall, on the side of the vent hole wall. The vent hole wall
includes a first wall section spaced in the first direction from
the edge of the circuit board, and a second wall section located in
the first direction relative to the first wall section. An inner
wall section is located between the second wall section and the
edge of the circuit board. The inner wall section is not located
between at least a part of the first wall section and the edge of
the circuit board. According to this electronic apparatus, since
the inner wall section is located between the second wall section
and the edge of the circuit board, limitations on design due to the
enlargement of the distance between the second wall section and the
edge of the circuit board can be mitigated. As a result, it is
possible to increase design freedom concerning the wall section
formed with the vent holes.
BRIEF DESCRIPTION OF DRAWINGS
[0007] FIG. 1 is a perspective view depicting an example of an
electronic apparatus proposed in the present disclosure.
[0008] FIG. 2 is an exploded perspective view of the electronic
apparatus.
[0009] FIG. 3 is a plan view of an apparatus main body constituting
the electronic apparatus.
[0010] FIG. 4 is a back elevation of the electronic apparatus.
[0011] FIG. 5 is a sectional view taken along line V-V of FIG.
4.
[0012] FIG. 6 is a plan view depicting an armor frame and a lower
case of a power source unit.
[0013] FIG. 7 is a perspective view of the armor frame.
[0014] FIG. 8 is a perspective view depicting the armor frame and
the lower case of the power source unit.
[0015] FIG. 9 is an enlarge view of FIG. 6.
[0016] FIG. 10 is a sectional view taken along line X-X of FIG.
9.
DESCRIPTION OF EMBODIMENT
[0017] An example of an embodiment of an electronic apparatus
proposed in the present disclosure will be described below. In the
following description, Y1 and Y2 directions depicted in FIG. 1 and
the like will be referred to respectively as a forward direction
and a rearward direction, X1 and X2 directions will be referred to
respectively as a rightward direction and a leftward direction, and
Z1 and Z2 directions will be referred to as an upward direction and
a downward direction.
[0018] An electronic apparatus 100 is, for example, an
entertainment device functioning as a game device or an
audio-visual apparatus. The electronic apparatus 100 outputs moving
image data generated by execution of a game program, video-audio
data acquired from a recording medium such as an optical disk,
video-audio data acquired through a network and the like to a
display device such as a television. The electronic apparatus
proposed in the present disclosure is not limited to the
entertainment device such as a game device, and may be a personal
computer.
[0019] As illustrated in FIG. 2, the electronic apparatus 100 has
an apparatus main body 10. The apparatus main body 10 has such
parts as a circuit board (not illustrated), a cooling fan 5 (see
FIG. 3), an optical disk drive 7 (see FIG. 3), and a power source
unit 40. The power source unit 40 is located at a rear portion of
the apparatus main body 10, and is disposed on a rear side of the
cooling fan 5 and the optical disk drive 7. The circuit board is
disposed, for example, on a lower side of the cooling fan 5 and the
optical disk drive 7. The layout of the parts in the apparatus main
body 10 is not limited to that in the example of the electronic
apparatus 100, and may be modified, as required.
[0020] As depicted in FIG. 2, the electronic apparatus 100 has an
upper armor cover 22, a lower armor cover 23, and an armor frame 21
as an armor member 20 thereof. The armor frame 21 is substantially
tetragonal in shape in plan view. The inside of the armor frame 21
is opening in the vertical direction, and the aforementioned parts
constituting the apparatus main body 10 are supported inside the
armor frame 21. In other words, the armor frame 21 has a front wall
section 21A, a right wall section 21B, a left wall section 21C, and
a rear wall section 21D. The parts constituting the apparatus main
body 10 are disposed inside the wall sections 21A to 21D, and are
attached to the armor frame 21. The upper armor cover 22 covers the
upper side of the apparatus main body 10, and is attached to the
armor frame 21. The lower armor cover 23 covers the lower side of
the apparatus main body 10, and is attached to the armor frame 21.
The upper armor cover 22, the lower armor cover 23, and the armor
frame 21 are formed from a resin such as, for example, ABS
(Acrylonitrile-Butadiene-Styrene) resin. Note that the
configuration of the armor member 20 is not limited to that in the
example of the electronic apparatus 100. For example, the
electronic apparatus 100 may have a lower housing and an upper
housing combined with each other in the vertical direction.
Besides, the parts constituting the apparatus main body 10 may be
attached to one of the housings.
[Exhaust Holes]
[0021] The electronic apparatus 100 has an air flow path for
cooling a heat generating part or parts possessed by the apparatus
main body 10. The heat generating part or parts are, for example,
integrated circuits such as a CPU (Central Processing Unit) and a
GPU (Graphics Processing Unit) mounted on the circuit board (not
illustrated), and a power source circuit possessed by the power
source unit 40. As depicted in FIG. 5, the armor member 20 has
exhaust holes E1 and E2 for discharging air having passed through
the air flow path to the exterior. In the example of the electronic
apparatus 100, the exhaust holes E1 and E2 are formed in a rear
wall section 20D (vent hole wall, see FIG. 4) of the armor member
20.
[0022] In detail, as illustrated in FIG. 5, the rear wall section
20D of the armor member 20 includes a first wall section 21a formed
along the left-right direction, and a second wall section 20b
formed along the left-right direction. The second wall section 20b
is spaced rearward from the first wall section 21a, and is deviated
upward relative to the first wall section 21a. Between the first
wall section 21a and the second wall section 20b, there is formed a
plurality of exhaust holes E1 (see FIG. 7) which is aligned in the
left-right direction. As depicted in FIG. 7, between the adjacent
two exhaust holes E1, a partition wall section 21b partitioning
them is formed. A plurality of partition wall sections 21b is
aligned at regular intervals in the left-right direction. As
illustrated in FIG. 5, the partition wall section 21b extends
forward from the second wall section 20b, and is connected to an
upper edge of the first wall section 21a. A lower edge of the
second wall section 20b and an upper edge of the first wall section
21a are located at the same height. Therefore, exposure of the
inside of the electronic apparatus 100 through the exhaust holes E1
is shielded by the second wall section 20b. In the example of the
electronic apparatus 100, the first wall section 21a and the second
wall section 20b are inclined such that their upper edges are
located on the rear side relative to their lower edges. The first
wall section 21a and the second wall section 20b may be formed
vertical.
[0023] As depicted in FIG. 5, the rear wall section 20D of the
armor member 20 has a third wall section 23a formed along the
left-right direction. The third wall section 23a is spaced rearward
from the first wall section 21a, and is deviated downward relative
to the first wall section 21a. Between the first wall section 21a
and the third wall section 23a, there is formed a plurality of
exhaust holes E2 which is aligned in the left-right direction.
Between the adjacent two exhaust holes E2, a partition wall section
21c partitioning them is formed. A plurality of partition wall
sections 21c is aligned at regular intervals in the left-right
direction. According to this structure, the exhaust holes E1 and
the exhaust holes E2 face each other in the vertical direction. In
the example of the electronic apparatus 100, the first wall section
21a and the third wall section 23a have substantially the same
length in the left-right direction. Like the first wall section 21a
and the second wall section 20b, the third wall section 23a is
inclined such that its upper edge is located on the rear side
relative to its lower edge. The third wall section 23a may be
formed vertical.
[0024] The aforementioned wall sections 21a, 20b, 23a, 21b, and 21c
constituting the exhaust holes E1 and E2 may be formed in any
member of the armor frame 21, the upper armor cover 22, and the
lower armor cover 23. For example, the wall sections 21a, 20b, 23a,
21b, and 21c may all be formed in the armor frame 21. In another
example, the second wall section 20b and the partition wall section
21b may be formed in the upper armor cover 22, whereas the third
wall section 23a and the partition wall section 21c may be formed
in the lower armor cover 23. The structures of the exhaust holes E1
and E2 are also not limited to those in the example of the
electronic apparatus 100. For example, the electronic apparatus may
have a plurality of exhaust holes aligned in the vertical
direction, and may have a partition wall section that partitions
the two exhaust holes adjacent to each other in the vertical
direction.
[0025] As illustrated in FIG. 5, in the example of the electronic
apparatus 100, the first wall section 21a and the partition wall
sections 21b and 21c are formed at the rear wall section 21D of the
armor frame 21. The second wall section 20b spaced rearward from
the first wall section 21a includes a wall section 21d formed at
the rear wall section 21D of the armor frame 21, and a rear wall
section 22D of the upper armor cover 22 disposed along the rear
side of the wall section 21d. The third wall section 23a is an
upper portion of a rear wall section 23D of the lower armor cover
23 spaced rearward from the first wall section 21a.
[Power Source Unit]
[0026] As depicted in FIG. 5, the power source unit 40 is disposed
along the rear wall section 21D (see FIG. 2) of the armor frame 21
and the rear wall section 20D of the armor member 20 including the
aforementioned second wall section 20b and the like. The power
source unit 40 converts electric power supplied from an external
power source into driving voltages for the parts and devices
possessed by the electronic apparatus 100, and supplies the driving
voltages to the parts and devices. The power source unit 40
includes a circuit board 41 (see FIG. 5) on which a power source
circuit is mounted, and a case 42 (see FIG. 2) that accommodates
the circuit board 41. Various parts 41b that generate heat are
mounted on the circuit board 41. The case 42 is formed from a resin
such as, for example, ABS resin.
[0027] As illustrated in FIG. 5, the case 42 is box-shaped, and has
an upper case 42A and a lower case 42B. The upper case 42A and the
lower case 42B are combined together in the vertical direction by
fixing means such as, for example, screws. The case 42 is formed
with an opening 42c (see FIG. 2) on the front side. The case 42
configures an air flow path S3, and, when the cooling fan 5 is
driven, air going from the cooling fan 5 flows through the opening
42c into the case 42 (see FIG. 3). The rear side of the case 42 is
also opening, and the case 42 (air flow path) is connected to the
exhaust holes E1 and E2. As depicted in FIG. 5, the upper case 42A
has an upper wall section 42a, while the lower case 42B has a lower
wall section 42b. The upper wall section 42a extends to an upper
edge of the second wall section 20b (more specifically, the wall
section 21d of the armor frame 21). In addition, the armor frame 21
has a bottom wall section 21f formed along the left-right
direction, at a lower edge of the partition wall section 21c on the
lower side. A rear edge of the bottom wall section 21f reaches the
third wall section 23a (an upper portion of the rear wall section
23D of the lower armor cover 23). A rear edge 42h of the lower wall
section 42b of the lower case 42B is connected to a front edge of
the bottom wall section 21f of the armor frame 21. Besides, left
and right wall sections of the case 42 are connected to wall
sections located at end portions of the exhaust holes E1 and E2. In
this way, the air flow path S3 inside the case 42 is connected to
the exhaust holes E1 and E2. Air in the third air flow path S3 is
discharged to the exterior via the exhaust holes E1 and E2, without
leaking to other regions.
[0028] The circuit board 41 is rectangular in shape, and, as
depicted in FIG. 5, its rear edge 41c is located along the rear
wall section 20D of the armor member 20 in which the aforementioned
exhaust holes E1 and E2 are formed. More in detail, the rear edge
41c of the circuit board 41 is parallel to the rear wall section
20D. The first wall section 21a is located nearer to the circuit
board 41 than the other wall sections 20b and 23a. The rear edge
41c of the circuit board 41 is parallel to the first wall section
21a (see FIG. 6). As aforementioned, the case 42 is opening to the
rear side. Therefore, as illustrated in FIG. 5, between the circuit
board 41 and the rear wall section 20D (more specifically, the
first wall section 21a), no other part is present. In other words,
a straight line along the front-rear direction that passes through
the parts 41b constituting the power source circuit 41 does not
intersect any part, between the rear edge 41c of the circuit board
41 and the rear wall section 20D.
[Rear Wall Section of Armor Member]
[0029] The power source circuit 41 has a power source inlet 41d for
connection with an external power source (for example, home power
source) through a cable (see FIGS. 4 and 6). As depicted in FIG. 7,
the rear wall section 20D of the armor member 20 is formed with an
inlet opening 21h for exposing the power source inlet 41d. In the
example of the electronic apparatus 100, the inlet opening 21h is
formed at a right end portion of the rear wall section 21D of the
armor frame 21. The armor frame 21 has, at its right end portion, a
wall section 21k formed with the inlet opening 21h (In the
following, the wall section 21k will be referred to as the "inlet
wall section."). The inlet wall section 21k is located on the right
side of the aforementioned first wall section 21a for forming the
exhaust hoes E1 and E2. In addition, the inlet wall section 21k is
located on the rear side relative to the first wall section 21a.
This structure facilitates the user's work of connecting a plug of
a cable extending from the external power source to the power
source inlet 41d. In the example of the electronic apparatus 100,
the position of the inlet wall section 21k in the front-rear
direction substantially coincides with the position of the wall
section 21d (see FIG. 5) constituting the aforementioned second
wall section 20b. The case 42 of the power source unit 40 has an
accommodation section 42i (see FIG. 9) that projects rearward and
accommodates the power source inlet 41d. The accommodation section
42i is also formed with an opening 42j for exposing the power
source inlet 41d to the rear side.
[0030] As illustrated in FIG. 8, the first wall section 21a has a
rectilinear wall section 21i and an inclined wall section 21j. The
rectilinear wall section 21i extends rectilinearly in the
left-right direction. The inclined wall section 21j extends
rightward and rearward from the rectilinear wall section 21i, and
is connected to the inlet wall section 21k. Therefore, as depicted
in FIG. 9, the inclined wall section 21j is located on the rear
side relative to the rectilinear wall section 21i. In the example
of the electronic apparatus 100, the inclined wall section 21j
extends rightward while curving rearward from the rectilinear wall
section 21i.
[0031] As illustrated in FIG. 9, the circuit board 41 of the power
source unit 40 has a part located on the front side of the
rectilinear wall section 21i, the inclined wall section 21j, and
the inlet wall section 21k. The rear edge 41c of the circuit board
41 is formed rectilinearly along the left-right direction.
Therefore, a distance L2 from the rear edge 41c to the inclined
wall section 21j is larger than a distance L1 from the rear edge
41c to the rectilinear wall section 21i. Similarly, the distance
from the rear edge 41c to the inlet wall section 21k is also larger
than the distance L1 from the rear edge 41c to the rectilinear wall
section 21i. In the example of the electronic apparatus 100, the
inclined wall section 21j extends obliquely rightward and rearward,
and, therefore, the distance L2 gradually increases in going
rightward.
[Inner Wall Section]
[0032] An inner wall section 42e (see FIGS. 8 and 9) is located
between the inclined wall section 21j and the rear edge 41c of the
circuit board 41, in plan view. In the example of the electronic
apparatus 100, as depicted in FIG. 10, in sectional view, the inner
wall section 42e is located between the inclined wall section 21j
and the rear edge 41c of the circuit board 41. Therefore, the
circuit board 41 is located on the front side of the inner wall
section 42e. The position of the circuit board 41 is lower than the
upper end of the inner wall section 42e, and is higher than the
lower end of the inner wall section 42e. In addition, the inner
wall section 42e is located on the front side of the inclined wall
section 21j. In other words, when the inner wall section 42e is
viewed in front view, the inner wall section 42e and the inclined
wall section 21j overlap with each other. As a result, limitations
on design due to the formation of the inclined wall section 21j
(limitations due to the rearward inclination of a part of the rear
wall section 20D of the armor member 20) can be mitigated by the
inner wall section 42e. As a result, adoption of a design in which
a part of the rear wall section 20D is inclined is facilitated.
[0033] Note that a width W2 (see FIG. 9) of the inner wall section
42e in the left-right direction coincides substantially with the
width of the inclined wall section 21j. Therefore, the inner wall
section 42e is not located on the front side of the rectilinear
wall section 21i of the first wall section 21a. More in detail, in
front view of the inner wall section 42e, the inner wall section
42e does not have any part that overlaps with the rectilinear wall
section 21i. Unlike in the example of the electronic apparatus 100,
a part of the inner wall section 42e may overlap with a part of the
rectilinear wall section 21i, in front view. For example, a part of
the inner wall section 42e may overlap with that part of the
rectilinear wall section 21i which is near the inclined wall
section 21j (for example, a part smaller than one half the
rectilinear wall section 21i), in front view.
[0034] The inner wall section 42e is a member formed separately
from the rear wall section 20D which is formed with the exhaust
holes E1 and E2. More in detail, the inner wall section 42e is a
member formed separately from the armor member 20. As illustrated
in FIG. 10, in the example of the electronic apparatus 100, the
inner wall section 42e is a part of the case 42 of the power source
unit 40. More specifically, the inner wall section 42e is a part
formed integrally with the lower case 42B. This structure makes it
possible to dispose the inner wall section 42e between the inclined
wall section 21j and the circuit board 41, without increasing the
number of component parts of the electronic apparatus 100. Note
that "the inner wall section 42e is formed separately from the
armor member 20" means that the member having the inner wall
section 42e (in the example of the electronic apparatus 100, the
case 42) is formed by a mold different from the mold used for
molding the members constituting the armor member 20 (in the
example of the electronic apparatus 100, the armor frame 21, the
upper armor cover 22, and the lower armor cover 23).
[0035] In the example of the electronic apparatus 100, as depicted
in FIG. 10, the inner wall section 42e extends upward from the rear
edge 42h of the lower wall section 42b of the lower case 42B. An
upper edge of the inner wall section 42e reaches the upper wall
section 42a of the upper case 42A. More in detail, the upper edge
of the inner wall section 42e is caught on the upper wall section
42a.
[0036] In the example of the electronic apparatus 100, a distance
L3 (see FIG. 9) between the inner wall section 42e and the rear
edge 41c of the circuit board 41 is smaller than the distance (see
FIG. 9) between the rear edge 41c of the circuit board 41 and the
rectilinear wall section 21i of the first wall section 21a. The
distance L3 is, for example, smaller than the distance L1 by the
thickness of the inner wall section 42e. The position of the inner
wall section 42e is not limited to that in the example of the
electronic apparatus 100. For example, the distance L3 may be same
as the distance L1.
[0037] As illustrated in FIG. 9, the inner wall section 42e is
formed along the left-right direction, and is disposed in parallel
to the first wall section 21a. Therefore, the inclined wall section
21j is inclined rearward in relation to the inner wall section 42e.
As aforementioned, the first wall section 21a (see FIG. 5) is
inclined such that its upper edge is located on the rear side
relative to its lower edge. As depicted in FIG. 10, the inner wall
section 42e is also inclined, like the first wall section 21a, such
that its upper edge is located on the rear side relative to its
lower edge. The posture of the inner wall section 42e is not
limited to that in the example of the electronic apparatus 100. In
other words, the inner wall section 42e may be formed in parallel
to the vertical direction.
[0038] As depicted in FIG. 10, the exhaust holes E1 are located on
the rear side of the inner wall section 42e. The inner wall section
42e is formed with a through-hole 42f which penetrates the inner
wall section 42e. According to this structure, air F1 can pass
through the through-hole 42f and can be discharged via the exhaust
holes E1, and, therefore, cooling performance of the electronic
apparatus 100 can be enhanced, as compared to a structure in which
such a through-hole 42f is absent. In the example of the electronic
apparatus 100, the inner wall section 42e is formed with two
through-holes 42f aligned in the left-right direction (see FIG. 9).
The through-hole 42f on one side (the hole 42f on the left side in
FIG. 9) is located on the front side of the exhaust hole E1 (the
exhaust hole E1 located at the right end). Unlike in the example of
the figure, the exhaust hole E1 maybe formed also on the rear side
of the through-hole 42f on the right side. As a further example,
the inner wall section 42e may not necessarily be formed with the
through-holes 42f. As another example, the exhaust hole E1 may not
necessarily be formed on the rear side of the inner wall section
42e.
[0039] Note that as depicted in FIG. 10, an upper edge 42g of the
through-hole 42f is located at a position higher than an upper edge
21m of the inclined wall section 21j. In other words, a straight
line FL along the front-rear direction can pass through the inside
of the through-hole 42f in the inner wall section 42e to reach the
exhaust hole E1. As a result, it is easy for air F1 having passed
through the through-hole 42f in the inner wall section 42e to be
discharged through the exhaust holes E1. Note that as illustrated
in FIG. 10, in the example of the electronic apparatus 100, while
the exhaust holes E1 are formed on the rear side of the inclined
wall section 21j, the exhaust holes E2 are not formed there. Unlike
in the example of the electronic apparatus 100, both the exhaust
holes E1 and E2 may be formed on the rear side of the inclined wall
section 21j.
[0040] In addition, as depicted in FIG. 10, the inner wall section
42e is close to the inclined wall section 21j, and no other part is
present between the inner wall section 42e and the inclined wall
section 21j. In other words, a straight line along the front-rear
direction intersecting the inner wall section 42e does not
intersect other parts or members between the inner wall section 42e
and the inclined wall section 21j. Therefore, air having passed
through the holes 42f in the inner wall section 42e can smoothly
flow to the exhaust holes E1.
[Air Flow Path]
[0041] An air flow path extending from the intake holes to the air
flow path S3 configured by the case 42 will be described. In the
example of the electronic apparatus 100, a side surface of the
electronic apparatus 100 is formed with the intake holes A (see
FIG. 1). As depicted in FIG. 3, the cooling fan 5 is covered with
the cover 8. The cover 8 is formed with an opening 8a located on
the upper side of the cooling fan 5. When the cooling fan 5 is
driven, air introduced from the exterior via the intake holes A
flows from the upper side of the cooling fan 5 into the cooling fan
5 through the opening 8a. In addition, the air introduced from the
exterior via the intake holes A passes on the lower side of the
apparatus main body 10, and flows from the lower side of the
cooling fan 5 into the cooling fan 5. The apparatus main body 10
has, in the inside thereof, air flow paths S1 and S2 formed
downstream of the cooling fan 5, in addition to the aforementioned
air flow path S3. The air flow paths S1 and S2 are partitioned from
other regions of the apparatus main body 10 by the cover, case and
wall members. The air flow path S1 is formed in the periphery of
the cooling fan 5. The air flow path S2 extends rearward from the
air flow path S1, and is located on the rear side of the cooling
fan 5. Heat sinks in contact with the integrated circuits such as,
for example, the CPU and the GPU are disposed in the air flow path
S2. The air flow path S3 configured by the case 42 extends rearward
from the air flow path S2, and is spreading in the left-right
direction.
SUMMARY
[0042] As aforementioned, the electronic apparatus 100 includes the
circuit board 41, and the armor member 20 having the rear wall
section 20D that is located on the rear side relative to the
circuit board 41 and that is formed with the exhaust holes E1. The
circuit board 41 has the rear edge 41c along the rear wall section
20D, on the side of the rear wall section 20D. The rear wall
section 20D includes the rectilinear wall section 21i spaced
rearward from the rear edge 41c of the circuit board 41, and the
inclined wall section 21j located on the rear side relative to the
rectilinear wall section 21i. The inner wall section 42e is located
between the rear wall section 20D and the rear edge 41c of the
circuit board 41. The inner wall section 42e is located between the
inclined wall section 21j and the rear edge 41c of the circuit
board 41, and is not located between the rectilinear wall section
21i and the rear edge 41c of the circuit board 41. As a result,
limitations on design due to the formation of the armor member 20
with the inclined wall section 21j (limitations due to rearward
inclination of a part of the rear wall section 20D of the armor
member 20) can be mitigated by the inner wall section 42e. As a
result, adoption of a design in which a part of the rear wall
section 20D is inclined is facilitated.
[Modifications]
[0043] Note that the electronic apparatus proposed in the present
disclosure is not limited to the aforementioned electronic
apparatus 100.
[0044] For example, the rear wall section 20D of the armor member
20 may have a part which is formed along the left-right direction
like the rectilinear wall section 21i and which is located on the
rear side relative to the rectilinear wall section 21i, in place of
the inclined wall section 21j. Besides, the inner wall section 42e
may be located between this part of the rear wall section 20D and
the rear edge 41c of the circuit board 41.
[0045] The inner wall section 42e may be formed in a member
different from the case 42. The inner wall section 42e may be
formed integrally with such a member as, for example, the armor
frame 21 or the lower armor cover 23.
[0046] The circuit board 41 disposed along the rear wall section
20D may not necessarily be a circuit board constituting the power
source unit 40. For example, the circuit board 41 may be a main
substrate of the electronic apparatus 100 (a substrate on which the
CPU and the like are mounted).
[0047] The rear wall section 20D having the inclined wall section
21j may be formed not with the exhaust holes E1 and E2 but with the
intake holes. In other words, the structure of the inner wall
section 42e and the inclined wall section 21j may be applied to a
wall section formed with the intake holes.
[0048] In addition, the inclined wall section 21j has been a wall
section that connects the inlet wall section 21k and the
rectilinear wall section 21i. The position of the inclined wall
section 21j is not limited to this one. In other words, the
inclined wall section 21j may be formed at a position different
from that of the inlet wall section 21k. Besides, the inner wall
section 42e may be formed on the front side of the inclined wall
section 21j.
* * * * *